添加一个UIButton

Question

I need a UIButton to act as a Radio button (selection button). When the user clicks on the button, the color should change (to indicate that the user clicked this button), and when the user clicks the same button again (the already selected button) the color of the button should change to the default color indicating that the button was un-selected.

How can i do this programatically ?

There might be other alternatives to do this, but i require to use the button to do this.

Answer 1

You can specify different images for selected and normal button states:

[btnName setImage:selectedImage forState:UIControlStateSelected];
[btnName setImage:normalimage forState:UIControlStateNormal];

And then in button's action method simply toggle button's state between normal and selected:

- (void) buttonAction:(UIButton*)sender{
    sender.selected = !sender.selected;
}

Answer 2

Put the below code in your button action.

if([btnName isSelected]) {
     [btnName setImage:@"SelectedImage" forState:UIControlStateNormal];
     [btnName setSelected:NO];
} else {
     [btnName setImage:@"deSelectedImage" forState:UIControlStateNormal];
     [btnName setSelected:YES];
}

Hope it will be useful.

Answer 3

Follow below link:

Radio Button in iPhone